Mehmet Ali Eren

Prof. Dr. Mehmet Ali Eren


Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 April 2023 in Diabetes, Obesity and Metabolism
Verified
Journal Article
Open access
ISILGIN YILDIRIM SIMSIR
ILGIN YILDIRIM SIMSIR
BTBeyhan Tüysüz
Beyhan Tüysüz
MOMehmet Nuri Ozbek
Mehmet Nuri Ozbek
STSeher Tanrikulu
Seher Tanrikulu
MGMerve Celik Guler
Merve Celik Guler
BABaris Akinci
Baris Akinci
Aim: To describe the Turkish generalized lipodystrophy (GL) cohort with the frequency of each complication and the death rate during the period of the follow‐up. Methods: This study reports on 72 patients with GL (47 families) registered at different centres in Turkey that cover all regions of the country. The mean ± SD follow‐up was 86 ± 78 months. Results: The Kaplan–Meier estimate of the median time to diagnosis of diabetes and/or prediabetes was 16 years. Hyperglycaemia was not controlled in 37 of 45 patients (82.2%) with diabetes. Hypertriglyceridaemia developed in 65 patients (90.3%). The Kaplan–Meier estimate of the median time to diagnosis of hypertriglyceridaemia was 14 years. Hypertriglyceridaemia was severe (≥ 500 mg/dl) in 38 patients (52.8%). Seven (9.7%) patients suffered from pancreatitis. The Kaplan–Meier estimate of the median time to diagnosis of hepatic steatosis was 15 years. Liver disease progressed to cirrhosis in nine patients (12.5%). Liver disease was more severe in congenital lipodystrophy type 2 (CGL2). Proteinuric chronic kidney disease (CKD) developed in 32 patients (44.4%) and cardiac disease in 23 patients (31.9%). Kaplan–Meier estimates of the median time to diagnosis of CKD and cardiac disease were 25 and 45 years, respectively. Females appeared to have a more severe metabolic disease, with an earlier onset of metabolic abnormalities. Ten patients died during the follow‐up period. Causes of death were end‐stage renal disease, sepsis (because of recurrent intestinal perforations, coronavirus disease, diabetic foot infection and following coronary artery bypass graft surgery), myocardial infarction, heart failure because of dilated cardiomyopathy, stroke, liver complications and angiosarcoma. Conclusions: Standard treatment approaches have only a limited impact and do not prevent the development of severe metabolic abnormalities and early onset of organ complications in GL.

2 January 2020 in Acta Orthopaedica et Traumatologica Turcica
Verified
Journal Article
Open access
MEMehmet Ali Eren
Mehmet Ali Eren
AGALI ERDAL GUNES
ALI ERDAL GUNES
IKİdRis Kırhan
İdRis Kırhan
TSTevfik Sabuncu
Tevfik Sabuncu
Objective: The aim of this study was to determine the role of new inflammatory markers, including the platelet-to-lymphocyte ratio (PLR) and neutrophil-to-lymphocyte ratio (NLR), in the prediction of length and cost of hospital stay in patients with infected diabetic foot ulcers (DFUs). Methods: A total of 78 patients with DFUs who were admitted to our endocrinology clinic between January 2016 and July 2017 were included. Patients were then divided into three groups according to the Wagner DFU classification system: group 1: 18 patients with grade 2 DFU (11 men, 7 women; mean age = 57.5±7 years); group 2: 44 patients with grade 3 DFU (18 men, 26 women; mean age = 59.7±8.7 years); and group 3: 16 patients with grade 4 DFU (10 men, 6 women; mean age = 59.9±11.6 years). Laboratory findings were retrospectively obtained from hospital records; the PLR and NLR were calculated in all groups. Length and cost of hospital stay were recorded. Hospital costs were estimated in Turkish Lira (TL) based on the evaluation of glucose regulation, wound care, and antibiotic treatment. Results: The mean NLR was significantly lower in group 1 (2.8±0.9) than in group 2 (6.0±5.2; p=0.017) and group 3 (6.9±5.3; p=0.011). The mean PLR was significantly lower in group 1 (140.8±42.6) than in group 3 (222.1±95.5; p=0.006). The mean length of stay was 7.9±2.7 days in group 1, 15.0±8.9 days in group 2, and 12.5±8.9 days in group 3. The mean cost was 1,310.8±500 TL in group 1, 2,966.9±2105 TL in group 2, and 3,488.1±3603.1 TL in group 3. Length and cost of stay were both significantly lower in group 1 than in groups 2 and 3 (p=0.011 and p=0.002, respectively). Comparative results showed that the length and cost of hospital stay increased with increasing severity of DFUs. Furthermore, correlation analyses demonstrated no correlation of length of stay with PLR and NLR but an obvious correlation between cost of stay and PLR (r=0.412; p0.05). Conclusion: The PLR is inflammatory marker that can be measured by an inexpensive and easily accessible test and can aid in the prediction of length and cost of hospital stay in patients with DFUs. Level of Evidence: Level III, Therapeutic study Cite this article as: Eren MA, Güneş AE, Kırhan İ, Sabuncu T. The role of the platelet-to-lymphocyte ratio and neutrophil-to-lymphocyte ratio in the prediction of length and cost of hospital stay in patients with infected diabetic foot ulcers: A retrospective comparative study. Acta Orthop Traumatol Turc 2020; 54(2): 127-31.

1 April 2013 in Revista da Escola de Enfermagem da USP
Verified
Journal Article
Open access
PDF file
Turgay UlasTurgay Ulas
Turgay Ulas
HBHakan Buyukhatipoglu
Hakan Buyukhatipoglu
IKIdris Kirhan
Idris Kirhan
MDMehmet Sinan Dal
Mehmet Sinan Dal
SUSevilay Ulas
Sevilay Ulas
NANurten Aksoy
Nurten Aksoy
The aim of this study was to evaluate the oxidative stress and metabolic activities of nurses working day and night shifts. Intensive care unit (ICU) (n=70) and ordinary service (OS) nurses (n=70) were enrolled in the study. Just before and the end of the shifts, blood samples were obtained to measure the participants' oxidative stress parameters. Metabolic activities were analyzed using the SenseWear Armband. Oxidative stress parameters were increased at the end of the shifts for all OS and ICU nurses compared to the beginning of the shifts. Compared to the OS nurses, the ICU nurses' TAS, TOS, and OSI levels were not significantly different at the end of the day and night shifts. The metabolic activities of the OS and ICU nurses were found to be similar. As a result, the OS and ICU nurses' oxidative stress parameters and metabolic activities were not different, and all of the nurses experienced similar effects from both the day and night shifts.

1 February 2019 in Diabetes Research and Clinical Practice
Verified
Journal Article
Closed access
MEMehmet Ali Eren
Mehmet Ali Eren
IKİsmail Koyuncu
İsmail Koyuncu
HIHatice İncebıyık
Hatice İncebıyık
HKHilal Karakaş
Hilal Karakaş
ÖEÖzcan Erel
Özcan Erel
TSTevfik Sabuncu
Tevfik Sabuncu

14 June 2019 in Medicina
Verified
Journal Article
Open access
PDF file
VAveysel ağan
veysel ağan
HCHakim Celik
Hakim Celik
MEMehmet Ali Eren
Mehmet Ali Eren
FAFatma Zehra Agan
Fatma Zehra Agan
ÖEÖzcan EREL
Özcan EREL
AGAtaman Gönel
Ataman Gönel
Background and objectives: The aim of this study was to research oxidative stress and thiol/disulphide homeostasis in Graves’ patients. Materials and Methods: The study included 33 Graves’ patients (research group) and 35 healthy subjects (control group). Serum oxidative stress and thiol/disulphide homeostasis (a new and automated spectrophotometric method developed by Erel and Neselioglu) parameters were studied and compared between the groups. Results: The native and total thiol levels and the native thiol/total thiol ratio were lower in patients with Graves’ disease compared to the control group (p < 0.001, p < 0.001, and p = 0.006, respectively). TOS (total antioxidant status), PC (protein carbonyl), OSI (Oxidative stress index), and disulphide/native thiol and disulphide/total thiol ratios were determined to be higher in the Graves’ disease group than in the control group (p < 0.001, p = 0.001, p = 0.001, p = 0.004, and p = 0.006, respectively). In the Graves’ disease group, the free triiodothyronine (FT3) and free thyroxine (FT4) levels were significantly positively correlated with impaired thiol/disulphide homeostasis and oxidative stress parameters (p < 0.05). Conclusion: The results of the current study demonstrated that oxidative stress and thiol/disulphide homeostasis increased towards disulphide formation due to thiol oxidation in Graves’ disease. In addition, a positive correlation of FT3 and FT4 was observed with oxidative stress parameters and impaired thiol/disulphide homeostasis.

24 July 2012 in Gynecological Endocrinology
Verified
Journal Article
Closed access
MEMehmet Ali Eren
Mehmet Ali Eren
MVMehmet Vural
Mehmet Vural
HCHasan Cece
Hasan Cece
HCHakan Camuzcuoglu
Hakan Camuzcuoglu
SYSema Yildiz
Sema Yildiz
NANurten Aksoy
Nurten Aksoy
The aim of our study was to evaluate serum amyloid A (SAA), an acute phase reactant, and carotid intima-media thickness (CIMT) as a valid predictor of atherosclerosis in women with gestational diabetes mellitus (GDM). Serum samples from 39 pregnant women with GDM and 25 healthy pregnant women were collected for the analysis of SAA. CIMT was measured in both groups to evaluate future atherosclerotic heart disease risk. The SAA level was measured with ELISA. The mean arterial blood pressure (MABP), CIMT and SAA levels were significantly higher in women with GDM compared with healthy pregnant controls (p = 0.033, p = 0.001 and p = 0.004, respectively). There were significant correlations between SAA and age, BMI, MABP, 50-g oral glucose tolerance test (OGTT), and A1c (p = 0.048, p = 0.037, p = 0.035, p = 0.042 and p = 0.048, respectively) and between CIMT and BMI, MABP, and 50-g OGTT, (p = 0.001, p = 0.004 and p < 0.001, respectively) in correlation analysis. Furthermore, there was a correlation between SAA and CIMT (p = 0.048). Increased SAA and CIMT values in GDM compared with healthy controls might indicate an increased risk of subclinical atherosclerosis and future atherosclerotic heart disease and the importance of inflammation in this process. These changes were associated with obesity, hypertension and glucose intolerance-related factors (BMI, MABP, and 50-g OGTT), which may be relevant to GDM pathophysiology.